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Stock Based Compensation Narrative Data (Details) - USD ($)
Sep. 30, 2020
May 22, 2020
Sep. 30, 2019
2014 Equity Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for equity awards (in shares) 50,000    
Aggregate number of outstanding grants of RSUs and stock options (in shares) 18,123    
Stock options outstanding (in shares) 4,500    
Unrecognized compensation expense, stock options $ 0    
Intrinsic value of stock options 0    
2014 Equity Plan | Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation expense, unvested RSUs 270,000   $ 167,000
RSUs granted to non-employee directors (in shares)   2,152  
Unrecognized director compensation expense, unvested RSUs $ 38,000    
2008 ISO Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options outstanding (in shares) 1,000    
Unrecognized compensation expense, stock options $ 0